From 22bd34fa338edc5fb38cce5adfa11ffbc451b0d4 Mon Sep 17 00:00:00 2001
From: John MacFarlane <jgm@berkeley.edu>
Date: Sat, 22 Sep 2012 13:59:30 -0700
Subject: Markdown reader: Fixed link parser to avoid exponential slowdowns.
Previously the parser would hang on input like this:
[[[[[[[[[[[[[[[[[[hi
We fixed this by making the link parser parser characters
between balanced brackets (skipping brackets in inline code spans),
then parsing the result as an inline list.
One change is that
[hi *there]* bud](/url)
is now no longer parsed as a link. But in this respect pandoc behaved
differently from most other implementations anyway, so that seems okay.
All current tests pass. Added test for this case.
Closes #620.
---
tests/Tests/Readers/Markdown.hs | 2 ++
1 file changed, 2 insertions(+)
(limited to 'tests')
diff --git a/tests/Tests/Readers/Markdown.hs b/tests/Tests/Readers/Markdown.hs
index 9a79f12f4..1eb2ce31e 100644
--- a/tests/Tests/Readers/Markdown.hs
+++ b/tests/Tests/Readers/Markdown.hs
@@ -48,6 +48,8 @@ tests = [ testGroup "inline code"
[ "in URL" =:
"\\begin\n" =?> para (text "\\begin")
]
+ , "unbalanced brackets" =:
+ "[[[[[[[[[[[[[[[hi" =?> para (text "[[[[[[[[[[[[[[[hi")
, testGroup "backslash escapes"
[ "in URL" =:
"[hi](/there\\))"
--
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